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If you've been following my blog posts for a while, you probably know that Vinco is among my favorite puzzle designers. His puzzles are made with the best quality wood materials and the finish work he applies to all his puzzles is top notch. If there was ever a reason to visit the Czech Republic, Vinco is certainly a very good one.
Tetrahedron in Cage is Vinco's take on a classic design by Stewart Coffin, the Ball Room. This is a very interesting design made with two contrasting wood types, one for the outer frame and the other for the actual pieces. It measures 10 x 6 cm (4" x 2.4").
In the original design you had four pieces made with spheres glued together in different arrangements. The idea was to build a pyramid with those pieces so that it could fit inside a square box. In this version, however, Vinco takes it one step further and makes the puzzle with only three pieces (or is it backwards?). But that's not all...Instead of having a box where you can freely touch the pieces, Vinco made a cage with the pieces already inside, and with little room to wiggle.
Vinco rates this as a difficulty level 4/5, and I completely agree. It's a little challenging to solve. You can separate the solving process into two steps: first you have to figure out how to build a pyramid out of those three different pieces. When you do, you have to actually build the pyramid with the very limited space inside the cage, since you can't take the pieces out. The openings in the sides are all you got to work with. Also, the pyramid won't fit with its base on the bottom, so you also have to work out the actual orientation, and that's maybe the most difficult part of the puzzle.
Tetrahedron in Cage is a very clever design by Vinco that shouldn't be missed. I like how it requires a different way of thinking and it messes with your spatial awareness. Definitely recommended for anyone who likes a challenge.
Availability: Tetrahedron in Cage can be purchased at Brilliant Puzzles for just $16.95 USD. Many other designs from Vinco are available.